StringAggFunction

sql_cli::sql::aggregates::functions

Struct StringAggFunction

pub struct StringAggFunction;

Expand description

STRING_AGG(column, separator) - concatenates strings with separator

Trait Implementations§

impl AggregateFunction for StringAggFunction

fn name(&self) -> &'static str

Name of the function (e.g., “SUM”, “AVG”)

fn init(&self) -> AggregateState

Initialize the aggregation state

fn accumulate( &self, state: &mut AggregateState, value: &DataValue, ) -> Result<()>

Add a value to the aggregation

fn finalize(&self, state: AggregateState) -> DataValue

Finalize and return the result

fn requires_numeric(&self) -> bool

Check if this function requires numeric input

Auto Trait Implementations§

impl Freeze for StringAggFunction

impl RefUnwindSafe for StringAggFunction

impl Send for StringAggFunction

impl Sync for StringAggFunction

impl Unpin for StringAggFunction

impl UnwindSafe for StringAggFunction

Blanket Implementations§

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where T: 'static + ?Sized,

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